Inventor

CHEN YING-CHANG

US3 patents

⚠️ This page may combine multiple inventors who share the name “CHEN YING-CHANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ASIA OPTICAL CO INC

2 patents

US7353738B2Apr 8, 2008

Cutting device and method for plastic lens

ASIA OPTICAL CO INC4 citations56

US7549219B2Jun 23, 2009

Automatic assembling system and method for camera lens units

ASIA OPTICAL CO INC3 citations51

INTEGRATED TELECOM EXPRESS INC

1 patent

US6424925B1Jul 23, 2002

Circuit and method for detecting a tone signal

INTEGRATED TELECOM EXPRESS INC13 citations69